diff --git a/src/main/java/com/eactive/eai/transformer/layout/Converter.java b/src/main/java/com/eactive/eai/transformer/layout/Converter.java
index 12630e5..fe0519e 100644
--- a/src/main/java/com/eactive/eai/transformer/layout/Converter.java
+++ b/src/main/java/com/eactive/eai/transformer/layout/Converter.java
@@ -222,10 +222,11 @@ public class Converter {
 		}
 		String[] data = normalized.split("[.]");
 		if (pointLength > 0) {
+			// length 는 소수점(.) 문자를 제외한 전체 자릿수 규약. 정수부 허용 자릿수 = length - pointLength
 			if (data.length == 1) {
-				if (data[0].length() > length - pointLength - 1) return false;
+				if (data[0].length() > length - pointLength) return false;
 			} else if (data.length == 2) {
-				if (data[0].length() > length - pointLength - 1) return false;
+				if (data[0].length() > length - pointLength) return false;
 				if (data[1].length() > pointLength) return false;
 			} else {
 				return false;